1. Section 16-3 Electricity from Magnetism Notes

2. Faraday’s Experiment
Faraday conducted an experiment trying to get the magnetic field of the electromagnet to make an electric current in a second wire.

3. Success for an Instant
Faraday realized that electric current in the second wire was made only when the magnetic field was changing.
Electromagnetic induction- the process of creating a current in a circuit by changing a magnetic field

5. Electric Generators
Electric generator- uses electromagnetic induction to change mechanical energy into electrical energy
When the electric current changes direction, it is an alternating current.
A nuclear reaction, fossils fuels, and wind are sources of energy that are used to generate electrical energy.

7. Transformers
Transformer- increases or decreases the voltage of alternating current
A step-up transformer increases voltage and decreases current.
A step-down transformer decreases voltage and increases current.
The electric current that brings electrical energy to your home is usually transformed three times.